Enum rustc::ty::util::Representability

pub enum Representability {
    Representable,
    ContainsRecursive,
    SelfRecursive(Vec<Span>),
}

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Describes whether a type is representable. For types that are not representable, 'SelfRecursive' and 'ContainsRecursive' are used to distinguish between types that are recursive with themselves and types that contain a different recursive type. These cases can therefore be treated differently when reporting errors.

The ordering of the cases is significant. They are sorted so that cmp::max will keep the "more erroneous" of two values.

Variants

Representable

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

ContainsRecursive

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

SelfRecursive(Vec<Span>)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl Clone for Representability

fn clone(&self) -> Representability

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialOrd for Representability

fn partial_cmp(&self, __arg_0: &Representability) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &Representability) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &Representability) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &Representability) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &Representability) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for Representability

fn cmp(&self, __arg_0: &Representability) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Eq for Representability

impl PartialEq for Representability

fn eq(&self, __arg_0: &Representability) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Representability) -> bool

This method tests for !=.

impl Debug for Representability

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.